Ditch-gate.



A. J. COLLAR.

DITCH GATE.

APPLICATION FILED APR.17, 1911.

Patented Dec. 5, 1911.

i =-matically operable gate for controlling the passage of Water through flumes, ditches,

' To all whom it may concern:-

Anomimni J. COLLAR, or farm, CALIFORNIA.

BITCH-GATE.

'Be it lmown that I, ADONIRAM J. COLLAR, citizen of the United States, residing at Yreka, in the county of Siskiyou and State of California, have invented new and useful Improvements in Ditch-Gates, of which the following .is a specification.

This invention relates to ditch gates. :The objectof the present invention is to provide a simple, reliable, efl'ective and autocanals or other conduits through which -hereinafter more water is tobe delivered in certain definite quantities.

The invention consists of the parts and the construction and combination of parts, as fully described and claimed,'having reference to the accompanying drawings, in which'-- j Figure 1 is a plan view of the improved ditch gate. Fig. 2 is a central longitudinal section through the gate and ditch.

In the present embodiment of my invention A represents a ditch, canal or flume intowhich' water is delivered from a suit- 1 able source, as a reservoir, main canal or other head water.

' Vertically adjustable in the ditch and close toits intake is a suitable form of closure or counterbalanced by a float 4 which rises and falls in correspondence with differences in elevation of a volume of; fluid in a well 5. The gate 2 and the float 4 are connected to the extremities of a suitable lever or beam 6 which is fulcrumed upon a suitable support, as at 7. v v

In irrigation projects and districtswhere the use ofwater is carefully governed and ling device is a desideratum.

The gate 2 is controlled in the present instance by fluctuations in-the level of the Specification of Letters Patent.

Patented Dec. 5, 1911.

Application filed April 17, 1911. Serial No. 621,669.

water in the well 5. This variation of level of the water in the well 5 is nicely determined by means of a movable funnel 8 which may be screened over its upper surface, as at 9, and to which funnel 8 is connected at its lower portion aconduit 10, which is flexibly connected by suitable joints and connections, as 11, with a stationary pipe or conductor 12, which projects into the flume or canal close to its bottom surface.

' The screened funnel or draining device 8 is adapted to stand with. its screened surface approximately even with the level of the fluid or water in the canal A. vFor the purpose of avoiding the effect of the current and eddies upon the screened funnel 8 there may be formed in the canal A a recess or canal A.

The gate 2 is primarily adjusted above the Yfloor of the canal A to permit a certain volume of water to flow into the canal A under pressureof a given head of .water in the main supply in front of the gate. these conditions given the float 4 is so ad'- justed relatively upon the lever 6 as to sustain the gate 2 in a given position so long as the head of water in front of the gate does not vary and so longas the level of the water behind the gate inthe canal A remains the same. j The screened funnel or drain member 8 is vertically adjusted by an appropriate device, here shown as a rod 14, adjustably secured upon a projection or pin 15 which is supported by a bridge over thewalls of the canal or flume A adjacent the funnel 8. The

- tially ,even with the level of a given volume of water coming in the canal A. In the event that an increase occurs in the volume of water, from any cause whatsoever, a

quantity in excess of the quantity normally intended to flow into the adjusted funnel will be added to the regular amount drained and flow through the conductor 12 into the well 5 This increase in' the volume of water flowing into the drain 8 rises to the With level in the Well'5 and lifts the float 1, which in turn acts through the lever (3 to lower the gate 2 to cut oil a portion, of the incoming water. I

In the event there is a fall in the level of the water in the canal A and before the gate 2, from any cause whatsoever, there will cease to be any flow into the drain 8; and through the connections 11 and 12 tojthe well 5*; in which event the stoppage of this supply of water to the well 5* will cause the level of the water in'the well to be gradually lowered by reason of a drain or bleeder pipe 16 which is connected to the lower portion of the well 5 and led to a point immediately adjacent the rear side of the gate 2.

The suction of the incoming water beneath the gate 2 and adjacent the flume or canal A induces an increased "elocity of current in the bleeder 16 so that the water in the well 5 is rapidly drawn out.

Simultaneously as the float 4 is lowered, the gate 2 will be lifted to increase the supply of water passing into the canal A which will again result in a rise of the level in the canal A, bringing it again to the level of the adjusted screened funnel 8 into which a quantity of water will again begin to flow and be conducted by the connections 11 and 12 into the well again, increasing theelevation of the water and lifting the float 4: to again lower the gate 2.

To enhance the suction action of the bleeder discharge point 17 which is drawn in the direction of a flow of the current into the canal A, I find that by tapering the point 17 slightly a greater force of suction is produced.

One of the advantages of the present gate is that of governing the automatic operation due to variations of level of water in the canal A. This automatic governing operation is enhanced by the provision of the pointed discharge tip 17 of the bleeder 16 connecting with the well 5.

For each variation in the quantity of water to be led into the canal A there is a particular adjustment of the gate 2; a corresponding variation of the level of the float 4 in its well 5; and a corresponding adjustment of the governing screen 8.

As the water level in the canal A rises or falls and the increase or decrease of water ous means for controlling the act-ion of the gate in order to maintain a given level of water in the canal A.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is-

1. A ditch gate, a fulcrum upon which the gate is hung, a lever connected at one end to the gate, a fulcrum upon which the lever is mounted, 'a float connected to the other end of the lever, a well in which the float may move, a canal in which the gate is operable, connections between said canal and the well, and means for varying the elevation of water in the well, said means including an adjustable device into which a quantity of water in the canal may be conducted into the well.

2. A ditch gate, a fulcrum upon which the gate is hung, a lever connected at one end to the gate, a fulcrum upon which the lever is mounted, a float connected to the other end of the lever, a well in which the float may move, a canal in which the gate is operable, connections between said canal and the well, means for varying the elevation of water in the well, said means including an adjustable device into which a quantity of water in the canal may be conducted into the well, and a bleeder connected to the well and having its discharge at a point adjacent the rear side of the gate;

3. A control for fluid conduits comprising a movable gate, instrumentalities where by said gate is adjusted, and means for actuating said instrumentalities when there is a variation of level of the fluid in the conduit behind the gate, said means including an adjustable drain exposed to the fluid in the conduit and adapted to actuate the instruinentalities for adjusting the gate.

t. A control for fluid conduits comprising a main gate, a well connected to the conduit. a discharge conveying fluid from said well and discharging it at a point adjacent the rear side of the gate, connections between the well and the conduit including an ad-' just-able drain normally conveying a portion of the fluid in the conduit to the well, a float in the well, and a fulcrumed lever upon the extremities of which are connected the gate and the float.

5. A control for conduits comprising an adjustable gate, a lever connected at one end to said gate, a float connected to the other end of the lever, a well in which the float is movable and in'which the fluid may assume different levels, means for changing the level of the fluid in the well, said means including a conductor leading from the well into the conduit, a drain adjustable in a recess or pocket into which the fluid in the conduit may move, flexible connections between the screen and said conductor, a de- 'vice for adjusting the drain, and a bleeder In testimony whereof I have hereunto set connected to the lower portion of the well my hand in the presence of two subscribing and adapted to discharge fluid intothe conwitnesses.

duit at a point adjacent and rear of the gate ADONIRAM J. COLLAR. so that the suction of the fluid traveling be- Witnesses:

neath the gate will cause an induced flow GARRA'L. BUSH,

of fluid through the bleeder. JAS. R. TAPSCOTT. 

